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http://dx.doi.org/10.9799/ksfan.2013.26.3.591

Changes in Nutraceutical Lipid Constituents of Pre- and Post-Geminated Brown Rice Oil  

Kwak, Ji-Eun (National Institute of Crop Science, Rural Development Administration)
Yoon, Sung-Won (Dept. of Food and Nutrition, Korea University)
Kim, Dae-Jung (National Institute of Crop Science, Rural Development Administration)
Yoon, Mi-Ra (National Institute of Crop Science, Rural Development Administration)
Lee, Jeong-Heui (National Institute of Crop Science, Rural Development Administration)
Oh, Sea-Kwan (National Institute of Crop Science, Rural Development Administration)
Kim, In-Hwan (Dept. of Food and Nutrition, Korea University)
Lee, Jun-Soo (Dept. of Food Science and Technology, Chungbuk National University)
Lee, Jeom-Sig (National Institute of Crop Science, Rural Development Administration)
Chang, Jae-Ki (National Institute of Crop Science, Rural Development Administration)
Publication Information
The Korean Journal of Food And Nutrition / v.26, no.3, 2013 , pp. 591-600 More about this Journal
Abstract
This study investigated the changes in the nutraceutical lipid components of brown rice oil after germination. Four different high-yielding cultivars (Dasan1, Segyejinmi, Hanareum1 and Hanareum2) of Korean brown rice were selected and brown rice oil was extracted from each cultivar before and after germination. Free fatty acid, squalene, policosanols, and isomers of phytosterol were analyzed using GC, and isomers of tocols (tocopherol and tocotrienol) and ${\gamma}$-oryzanol were quantified using HPLC from both brown rice oil (BRO) and germinated brown rice oil (GBRO). The contents of phytosterol isomers, campesterol, stigmasterol, and ${\beta}$-sitosterol were increased by 8.3%, 31.6%, 3.3% in GBRO, respectively. Furthermore, the squalene content showed the highest increase of up to 2.4 fold in GBRO compared to BRO. In addition, linoleic and linolenic acid composition increased whereas oleic and palmitic acid decreased in the GRBO. However, the contents of tocols (tocopherol and tocotrienol) in GBRO were lower than those in BRO, and there was no significant difference in policosanol and ${\gamma}$-oryzanol between GBRO and BRO. These results suggest that GBRO has the potential as a healthy and functional source due to its lipid profile on improved lipid metabolism.
Keywords
germinated brown rice; brown rice oil; nutraceutical lipid; phytosterol; squalene;
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Times Cited By KSCI : 14  (Citation Analysis)
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